"Yes. I guessed that when I received your card, and was certain of it when you asked for Miss Gordon. You know Miss Gordon, of course?" "No, I never set eyes on her." "Really! Then why do you wish to see her?" asked Mrs. Amber, anxiously. "To see if she knows anything about this murder." Mrs. Amber did not reply immediately, but trembled so violently that her ornaments jingled like so many little bells. "Dr. Ellis," said she at length, in a shaking voice, "you speak the doubts that are in my own mind." "What! Do you think she knows of the murder?" "I am unwilling to harm Miss Gordon," said Mrs. Amber, in a scared tone, "as I have a great respect for her. But I fancy she must have seen something on that night or she would not have shut herself up in her bedroom all these weeks. And, Dr. Ellis, do you know I have sometimes suspected her myself." "Of the murder?" Mrs. Amber nodded. "I was afraid of getting into trouble if I spoke," she said nervously, "and I really can't bring myself to believe that, Miss Gordon killed her brother-in-law. But Sarah brought down a pair of cuffs to be washed--Miss Gordon's cuffs--and they were spotted with blood!" CHAPTER XV WHAT MRS. AMBER KNEW Mrs. Amber made this communication in a whisper, and then drew back to see what effect it would have on Ellis. He appeared to be less surprised than she expected, for the scene in Busham's office had prepared him to suspect Janet Gordon. Therefore he was not astonished to find his suspicions confirmed, but he did not go quite so far in his accusation as Mrs. Amber. "For reasons which I need not repeat," said he, deliberately, "I am not so surprised as you expect me to be. I have long thought that Miss Gordon might know of the murder, but I most emphatically decline to believe that she struck the blow herself." "But the cuffs were stained with blood. I washed them myself, and told Sarah to hold her tongue." "Miss Gordon may have handled the body after the death, Mrs. Amber, but I do not think she killed the man. If you read the report of the evidence I gave at the inquest you will remember that I stated no woman could have struck so firm and sure a blow. I hold to that opinion. Moxton was stabbed by a man." "What man?" "That is what I wish to ask you, Mrs. Amber." The ex-actress turned pale beneath her rouge, and two red spots glowed crudely on her white cheeks. "I!" she exclaimed, drawing back. "How do I know who killed Mr. Moxton?" "I do not say that you know, but from your experience of the man, and from a certain amount of knowledge which you must have of his past life, it is not improbable that your suspicions may have fallen on someone who had a grudge against him."